| Autor: |
Afonin, A. V., Andriyankov, M. A., Nikitin, M. V., Garashchenko, Z. M., Khil'ko, M. Ya. |
| Zdroj: |
Chemistry of Heterocyclic Compounds; August 1991, Vol. 27 Issue: 8 p863-866, 4p |
| Abstrakt: |
A weak hydrogen bond with the participation of the vinyl group α-hydrogen atom arises in 2-vinyloxypyridine and 2-vinylthiopyridine, which primarily exist in the s-trans-conformation, according to the 1H and 13C NMR data. This interaction does not take place in 2-vinyloxymethyl- and 2-vinyloxyethylpyridines, which primarily exist in the s-cis-conformation. The C-H...N intramolecular interaction also does not occur in o-vinyloxyaniline due to the specific features of the stereoelectronic state of the amino group nitrogen atom. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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